Which converter fits a 2005 Grand Cherokee 3.7L?

The Eastern 20385 is listed for the 2005-2006 Grand Cherokee and 2006-2007 Commander with the 3.7L V6. Confirm the Walker part number against your VIN before buying it for that truck.

Is stainless steel worth it over aluminized steel?

In states that salt roads, yes. Stainless resists rust longer, while aluminized steel can scale after several winters. In dry climates the difference is small.

Can I use either one in California?

No. Both are EPA (federal) converters and neither is CARB certified. California and states following CARB rules require a CARB-approved converter.

Do I need new gaskets and hardware?

Yes. Neither part includes a gasket, and the Walker unit includes no mounting hardware. Buy gaskets and bolts for the flanges when you order.

The Walker's stainless body should outlast the Eastern's aluminized steel in wet, salty conditions. Catalyst life depends more on engine health, so fix oil burning or misfires first.

Eastern Catalytic Direct-Fit Catalytic Converter vs Walker Exhaust Direct-Fit Catalytic Converter

Both are EPA (federal) direct-fit converters for the 2005-2006 Jeep Grand Cherokee 3.7L V6, so the choice comes down to fitment confidence and materials. The Eastern 20385 is the safer pick for a stock 2005 Grand Cherokee: it is built for that exact engine, uses aluminized steel, and includes four O2 sensor ports. The Walker unit uses stainless steel, which resists rust better in salt-belt states, but confirm the part number against your VIN before buying. No prices were provided for either part, so compare live store prices on Deal.ai before you commit.

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